Zirconia grit for faster material with Type 27 fiberglass backing for optimal grinding angle of 5-15 degrees, allows full use of disc. Premium abrasive cloth for longer life.
Zirconia grit enables 3X faster material removal than fiber resin metal sanding discs
Premium abrasive cloth provides up to 15 X longer life than fiber resin metal sanding discs
Type 29 fiberglass backing provides grinding angle of 20-25 degrees